COMBUSTION-SYNTHESIS; GEL; CERAMICS; PRECURSORS; OXIDE; LiMaRC - Liège Materials Research Center
Abstract :
[en] The potential use of barium zirconate for the manufacture of corrosion-resistant substrates emphasizes the need for a simple, inexpensive, and easily scalable process to produce high-quality powders with well-controlled composition and properties. However, the classical solid-state preparation of barium zirconate leads to an inhomogeneous powder unsuitable for applications in highly corrosive environment. For this paper, the possibility to use the spray-drying technique for the preparation of BaZrO3 powders with a controlled size distribution and morphology was investigated. The influence of the nature and concentration of the precursor solution and the influence of the spray-drying step are discussed on the basis of x-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and dilatometric measurements.
Disciplines :
Chemical engineering Chemistry Materials science & engineering
Author, co-author :
Robertz, B.
Boschini, Frédéric ; Université de Liège - ULiège > Département de physique > Physique statistique
Rulmont, André ; Université de Liège - ULiège > Chimie inorganique structurale
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